I recently got a mobile mechanic to do a cambelt change on my car. The guy was a complete idiot and did not bring the right locking tools so when he started the car after finishing the job he appears to have damaged the engine. We told him to leave and I got a family member to do the cambelt process properly with the right tools and the confirmed the job was done right as they had turn the car over by hand 4 times and the car was still in time. The engine still would not run right. The car is misfiring and occasionally stalling. I did a compression test and cylinder 2 had 0 compression. All other cylinders reading 121 psi exactly. I organised to get the car towed to Renault franchise dealer to get the job done but I have no idea how much this is going to cost. Has anyone had a similar issue, I am suspecting bent valves, and had the work done by a dealer. I don’t known if I am going to be looking closer to a £1000, or more like £2000 or £3000 for the cylinder head to come and necessary repair to be done. Any insight would be great.